Mass per volume density.
Stones per Cup to Imperial hundredweights per Cup Converter — st/cup to long cwt/cup
Convert Stone per Cup (st/cup) to Imperial hundredweight per Cup (long cwt/cup) using the exact conversion factor (1 stone per cup = 0.125 imperial hundredweight per cup). See the formula, worked examples, and conversion table.
Stones per Cup to Imperial hundredweights per Cup converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 26841.11972 / 214728.9578.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cup to Imperial hundredweights per Cup
Stone per Cup and Imperial hundredweight per Cup both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
imperial hundredweights per cup = stones per cup × 0.125
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cup equals 26841.119719 base units, and 1 imperial hundredweight per cup equals 214728.957752 base units, so dividing one by the other gives the direct stone per cup-to-imperial hundredweight per cup factor of 0.125.
Simple example
1 st/cup × 0.125 = 0.125 long cwt/cup
1 stone per cup = 0.125 imperial hundredweights per cup.
Real-world example
1,000 st/cup × 0.125 = 125 long cwt/cup
1,000 stones per cup = 125 imperial hundredweights per cup.
Conversion table
| Stone per Cup (st/cup) | Imperial hundredweight per Cup (long cwt/cup) |
|---|---|
| 0.1 st/cup | 0.0125 long cwt/cup |
| 1 st/cup | 0.125 long cwt/cup |
| 10 st/cup | 1.25 long cwt/cup |
| 100 st/cup | 12.5 long cwt/cup |
| 1,000 st/cup | 125 long cwt/cup |
| 10,000 st/cup | 1,250 long cwt/cup |
Reverse conversion: Imperial hundredweight per Cup to Stone per Cup
0.125 long cwt/cup × 8 = 1 st/cup
0.125 imperial hundredweights per cup = 1 stone per cup.
stones per cup = imperial hundredweights per cup × 8
For a page dedicated to this direction, see Imperial hundredweight per Cup to Stone per Cup.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Understanding the Imperial hundredweight per Cup (long cwt/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many imperial hundredweights per cup are in 1 stone per cup?
1 stone per cup equals 0.125 imperial hundredweights per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cup to imperial hundredweight per cup?
Multiply the stone per cup value by 0.125. The converter above does this instantly to whatever precision you set.
How do I convert imperial hundredweight per cup back to stone per cup?
Use the reverse factor: 1 imperial hundredweight per cup equals 8 stones per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
What is a imperial hundredweight per cup?
Imperial hundredweight per Cup (long cwt/cup) is a unit of density.
Is the stone per cup to imperial hundredweight per cup conversion exact?
Yes. Both stone per cup and imperial hundredweight per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.125 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.